Question

我无法重现Apple崩溃报告中出现的错误。我有4个应用程序使用已经批准的相同代码库，现在我有2个被拒绝的错误，我从未遇到过。

以下是我从Apple Review回来的崩溃报告。下面再次显示我的App Delegate中的错误行。我正在查看系统调用此时错误，以防它们为我提供了一些亮点。

Incident Identifier: XXXXXX
CrashReporter Key:   XXXXXX
Hardware Model:      iPhone3,1
Process:         XXXX [120]
Path:            XXXX
Identifier:      XXXX
Version:         ??? (???)
Code Type:       ARM (Native)
Parent Process:  launchd [1]

Date/Time:       XXXX
OS Version:      iPhone OS 4.1 (8B117)
Report Version:  XXXX

Exception Type:  EXC_CRASH (SIGABRT)
Exception Codes: 0x00000000, 0x00000000
Crashed Thread:  0

Thread 0 Crashed:
0   libSystem.B.dylib               0x00078ac8 __kill + 8
1   libSystem.B.dylib               0x00078ab8 kill + 4
2   libSystem.B.dylib               0x00078aaa raise + 10
3   libSystem.B.dylib               0x0008d03a abort + 50
4   libstdc++.6.dylib               0x00044a20 __gnu_cxx::__verbose_terminate_handler() + 376
5   libobjc.A.dylib                 0x00005958 _objc_terminate + 104
6   libstdc++.6.dylib               0x00042df2 __cxxabiv1::__terminate(void (*)()) + 46
7   libstdc++.6.dylib               0x00042e46 std::terminate() + 10
8   libstdc++.6.dylib               0x00042f16 __cxa_throw + 78
9   libobjc.A.dylib                 0x00004838 objc_exception_throw + 64
10  CoreFoundation                  0x000a167c -[NSObject(NSObject) doesNotRecognizeSelector:] + 96
11  CoreFoundation                  0x000491d2 ___forwarding___ + 502
12  CoreFoundation                  0x00048f88 _CF_forwarding_prep_0 + 40
13  XXX                         0x00002a02 -[XXX application:didFinishLaunchingWithOptions:] (XXXAppDelegate.m:94)
14  UIKit                           0x0000e47a -[UIApplication _callInitializationDelegatesForURL:payload:suspended:] + 766
15  UIKit                           0x000049e0 -[UIApplication _runWithURL:payload:launchOrientation:statusBarStyle:statusBarHidden:] + 200
16  UIKit                           0x0005dfd6 -[UIApplication handleEvent:withNewEvent:] + 1390
17  UIKit                           0x0005d8fa -[UIApplication sendEvent:] + 38
18  UIKit                           0x0005d330 _UIApplicationHandleEvent + 5104
19  GraphicsServices                0x00005044 PurpleEventCallback + 660
20  CoreFoundation                  0x00034cdc __CFRUNLOOP_IS_CALLING_OUT_TO_A_SOURCE1_PERFORM_FUNCTION__ + 20
21  CoreFoundation                  0x00034ca0 __CFRunLoopDoSource1 + 160
22  CoreFoundation                  0x00027566 __CFRunLoopRun + 514
23  CoreFoundation                  0x00027270 CFRunLoopRunSpecific + 224
24  CoreFoundation                  0x00027178 CFRunLoopRunInMode + 52
25  UIKit                           0x000040fc -[UIApplication _run] + 364
26  UIKit                           0x00002128 UIApplicationMain + 664
27  XXX                         0x00002154 main (main.m:14)
28  XXX                         0x00002124 start + 32

AppDelegate中的代码：

NSArray *viewControllers = favNavController.viewControllers;
FavouritesViewController *favouritesView = (FavouritesViewController*)[viewControllers objectAtIndex:0]; <-- Line indicated in crash report

我无法重现这一点。任何见解或建议表示赞赏。

Answer 1

我看起来像“favNavController.viewControllers”不是NSArray - 因此在尝试执行“objectAtIndex”时你会得到“无法识别的选择器”。

您是否注意到应用程序是在响应URL时启动的？（OpenWithURL）？

我不知道这是否会使您的代码通过不同的初始化路径 - 目前尚未完成。

帮助解释Apple崩溃报告

1 个答案: